17 July 2011

AS3: Simple, Powerful String Find & Replace all instances function for Flash Actionscript. Similar to PHP's str_replace replacement.

Exactly what it says on the tin!

AS2 version here



Please see right hand pane before copying my code - thanks! >>

//needle and/or replacement can be either a string or an array of strings:
function replace ( needle, replacement, haystack:String):String{
   var r=haystack;
   if(typeof(needle)=="string"){
    needle = [needle]
   }
   if(typeof(replacement)=="string"){
    replacement = [replacement]
   }
   while(replacement.length<needle.length){
    replacement.push(replacement[replacement.length-1])
   }
   for(var i in needle){
    r = r.split(needle[i]).join(replacement[i])
   }
   return(r)
  }
//SAMPLE USAGE:
trace( replace( "A", "X", "ABCDEFG" ) )  //outputs: XBCDEF
trace( replace(["A","B","C"] , ["X","Y","Z"], "ABCDEFG") )  //outputs: XYZDEF

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